2.1 Storage cloud overview2.1.1 Storage usage differences within a storage cloud infrastructure2.2 Traditional storage versus storage cloud2.2.1 Challenges of traditional storage2.2.2 Advantages of a storage cloud2.2.3 Implementation considerations for storage cloud2.3 Benefits and features of storage cloud2.3.1 Dynamic scaling and provisioning (elasticity)2.3.2 Faster deployment of storage resources2.3.3 Reduction in TCO and better ROI2.3.4 Reduce cost of managing storage2.3.5 Dynamic, flexible chargeback model (pay-per-use)2.3.6 Self-service user portal2.3.7 Integrated storage and service management2.3.8 Improved efficiency of data management2.3.9 Faster time to market2.4 Storage classes for cloud2.5 Storage cloud delivery models2.5.1 Public storage cloud2.5.2 Dedicated private storage cloud2.5.3 Local private storage cloud2.5.4 Hybrid storage cloud2.5.5 Community storage cloud2.6 The storage cloud journey2.6.1 Example: Tier cold data2.6.2 Example: Backup/snapshot data2.6.3 Example: Disaster recovery data2.6.4 Example: Daily operations and dev/test data2.6.5 Example: Production application data